@misc{indiciae81848f4712dc,
  title = {Variations in normal electrocardiographic response to treadmill testing.},
  author = {V F Froelicher and R Wolthuis and J Fischer and G Uhl},
  year = {1981},
  doi = {10.1016/0002-9149(81)90229-0},
  url = {https://pubmed.ncbi.nlm.nih.gov/7223663/},
  note = {Source identifier: 7223663}
}